Zones, lifestyles, and invertebrates

the area between the high tide and the low tide mark

• benthic zone
• intertidal zone
• pelagic zone
• abyssal zone

organisms that live on or in the bottom

• benthos
• neuston
• littoral
• heterotrophs

organisms that swim against the ocean’s currents

•  neuston
• plankton
• nekton
• naphron

the entire bottom portion of the ocean

• pelagic zone
• bathyal zone
• neustonic zone
• benthic zone

organisms that drift in the ocean unable to swim against the currents

• benthos
• plankton
• nekton
• epifauna

The ocean layers are divided by the amount of __________________ in each layer.

• animals
• salt
• light
• people

I am spiny, have a water vascular system with tube feet, radial symmetry, what phylum do I belong to?

• Mullosk

• Arthropod

• Echinoderm

• Cnidarian

I have a soft-body, a hard shell, and live on land and water.  what phylum do I belong to?

• Mollusk

• Arthropod

• Echinoderm

• Cnidarian

I have a hard exoskeleton, a segmented body, pairs of jointed appendages, awhat phylum do I belong to?

• Mollusk

• Arthropod

• Echinoderm

• Cnidarian

I have a cavity with one opening.  I am coral.  In what phylum am I?

• Mollusk
• Arthropod
• Echinoderm
• Cnidarian